Dominant (Genetics) — Alleles, Genes & Traits
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- Dominant When an organism is developing, it has to activate and use a bunch of different genes. An offspring of sexual reproduction has genes from both of its parents, and when …
By Aaron Lauer, Deena Hauze, Gabi Slizewska, Mario Janakis
- Let's Review Traits, Genes, and Alleles To begin, let's refresh our memories about the difference between genes, traits, and alleles. A trait is a specific characteristic that i…
By Deena Hauze, Alex Federspiel, Gabi Slizewska, Mario Janakis
- What Is a Dominant Allele? Humans have two sets of chromosomes, one from each parent. Since your parents have different DNA, you get two different variations of each gene. Varia…
By Gabi Slizewska, Deena Hauze, Mario Janakis
- (Video) Dominant vs. Recessive Traits by ScienceGonnaGetYou In this video, ScienceGonnaGetYou explains why we don't look exactly like our parents by talking about dominant and r…
By Mario Janakis
Problems 20
- Which petal color is dominant in the above punnett square?
- Which of the following letters would represent a homozygous dominant genotype?
- What would be the genotypes of the two empty squares?
- A plant with broad leaves and a plant with narrow leaves are mated together. All of the offspring have broad leaves. What is the relationship of the two leaf alleles?
- In a heterozygous organism, the dominant allele produces a phenotype. What is happening with the recessive phenotype?
- One parent has a trait that is Bb, one dominant and one recessive allele. The other parent has only the dominant forms of the allele, BB. Use the punnett square to figure out ho…
- Which of the following states that when two forms of the same gene are present the dominant allele will be expressed?
- Which of the following is false?
- In a heterozygous organism, which allele will produce a phenotype?
- The diagram above shows genotypes for fur color in cats and the corresponding phenotypes. Which fur color is dominant?
- If having broad lips is dominant to thin lips, what phenotype would a heterozygous individual have?
- The western white butterfly can have different wing patterns depending on the season when it was hatched. What contributes to this variation?
- Rebecca is a fast runner. The allele for being a fast runner has been scientifically proven to be dominant, in Rebecca's alternate world. Unfortunately, neither Rebecca's dad or…
- The above genes were discovered in several species of Pokemon. The gene for attack can have the red allele for fire or blue allele for ice. The chromosomes above belong to a Pok…
- On a foreign planet, a striped fruit and a spotted fruit are bred together. The allele for striped fruit is dominant. Of the four offspring, two are striped and two are spotted.…
- If both of your parents are heterogenous for autosomal recessive alleles for a disease, what are the chances that you will not have the disease?
- You have straight hair when both of your parents have very curly hair. What is a possible explanation for this?
- Which statement is true?
- A father has a homozygous autosomal recessive gene, while a mother is homozygous dominant. What are the chances that their male children will show the recessive phenotype?
- Joey's parents have different eye colors. His mom has green eyes and his dad has brown eyes. If we know that both of his parents are homozygous for the eye color allele, and tha…